Wipes and their use

a technology of wipes and wipes, applied in the field of wipes, can solve the problems of difficult to remove certain types of soil, difficult to remove dried-on or baked-on combinations of proteinaceous and greasy soil from dishware, and difficult to remove stains and rust from dishware and household surfaces

Inactive Publication Date: 2005-05-19
THE PROCTER & GAMBLE COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0136] As discussed above, the wipes of the invention are generally disposable and used only a limited number of times. However, an advantage of the invention is the controlled release of bleaching agent to the washing environment which can be achieved with the invention. This is determined as discussed below in the examples. The method disclosed is particularly applicable to measurement of PAP as the bleach. However, it may be used for measurement of release of any bleach by selection of the appropriate conversion factor in step 6. In some preferred embodiments bleach release is controlled so that less than 50% is released after one day, preferably less than 40% and in some preferred cases less than 30%. It can be preferred for less than 50%, in particular less than 40% and even less than 30% to be released after two day's use. In certain preferred embodiments release is less than 60%, preferably less than 50% and in particular less than 40% after three days.
[0137] The cleaning composition used in the wipe according to the invention may comprise any other suitable components known for use in dishcare or hard surface cleaning.
[0138] The composition may for instance contain diamines, polymeric suds stabilisers, film-forming polymers, colorants, perfume and perfume delivery agents, stabilizers, solvents, density control agents, drying agents, hydrotropes, salt, solidification agents, preservation agents, water spotting / filming / drying control agents, and mixtures thereof. Dishwashing Sponges
[0139] The cleaning compositions of the invention can also advantageously be applied to dishwashing sponges and in a further aspect of the invention we provide a dishwashing sponge having impregnated therein a cleaning composition comprising:
[0140] (a) a surfactant, and (b) a bleach, which is a peroxy carboxylic acid or a hydrophilic precursor thereof.
[0141] Alternatively the composition can comprise (a) a surfactant, (b) a bleach and (c) a water-soluble thickening polymer having anionic side chains.

Problems solved by technology

Certain types of soil are particularly difficult to remove.
For instance, dried-on or baked-on combinations of proteinaceous and greasy soils are difficult to remove from dishware.
Further, stains and rust are also difficult to remove from dishware and household surfaces.
The problem remains of removal of difficult soils in processes of dishwashing by hand.
Unfortunately, many bleaches tend to be incompatible with many surfactants, and on storage they tend to interact such that either the bleach or the surfactant or both has reduced efficacy by the time of use.

Method used

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  • Wipes and their use
  • Wipes and their use

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0144] A bleach paste is formed having the following composition: [0145] 40% PAP [0146] 0.5% dimethylterephthalate-1,2-propylene glycol-sulfo-ethoxylate copolymer [0147] 3% Xanthan Gum [0148] 10% Glycerol [0149] 46.5% water

[0150] A surfactant paste is formed having the following composition: [0151] 49% alkyl ethoxy sulphate having average 0.6EO groups per molecule (anionic surfactant) [0152] 10.7% amine oxide (amphoteric surfactant) [0153] 3.8% Neodol 91-8 non-ionic surfactant [0154] 0.92% 1,3-cyclohexane bis (methylamine) [0155] 0.31% polydimethylamino ethyl methacrylate [0156] 5.5% fumed silica [0157] 6% Xanthan gum [0158] 23.8% water

[0159] A substrate 120 mm×140 mm in area is prepared. The substrate comprised a polymeric scrim layer, two batting layers, a polymeric membrane layer and a nonwoven topsheet layer (arranged in that order). The compositions were positioned between one of the batting layers and the polymeric membrane layer.

[0160] The surfactant paste is applied to on...

example 2

[0163] This example demonstrates improved prevention of discoloration achieved in the invention. Wipes A and B are prepared. Wipe A is as described in Example 1 and wipe B differs in that the application of the bleach paste is omitted. [0164] 1. Wipes A and B are prepared. [0165] 2. Wipe is immersed in 0.8 l water and a hydrophobic red dye is introduced as a model soil at 2.5% level. [0166] 3. Each wipe is dipped into a separate beaker three (3) times squeezing the excess water out of the wipe in between each dip. [0167] 4. When all three dips have been completed, excess soap / oil is rinsed off the wipe. [0168] 5. Excess water is removed by wringing the wipe which is then allowed to dry overnight.

[0169] Results

WipeL (Whiteness)A (Yellow)B(RedUntreated Wipes A and B98.140.370.30(initial reading)Wipe B66.0936.754.41Wipe A93.0710.34−0.35

[0170] It can be seen that the difference in whiteness for wipe A after use is not more than 5% from the initial reading whereas for wipe B it is aro...

example 3

[0173] This example demonstrates soil removal benefits of wipes A of the invention in comparison with use of a liquid base dishwashing composition applied with a sponge to dishware.

[0174] Wipes A produced according to Example 1 have a composition applied to the substrate as shown below. These are compared with a liquid hand dishwashing composition, shown as LDL below, applied to dishware with a sponge. The components are as indicated, with the balance being water. Soil removal results are shown.

ALDLFormulaPAP  7%0Xanthan Gum  5%0AE0.6S 32%49% Amine Oxide  7%11% Neodol 91-82.5%3.7%  1,3-bisaminomethyl-cyclohexane0.6%0.9%  Polydimethylaminomethylmethacrylate0.2%0.4%  Fumed Silica3.6%0PerformanceSoil Removal (%) 44%18% 

Results are obtained as follows:

Procedure [0175] 1. Prepare slides with burnt on Macaroni and Cheese. [0176] 2. Slides must be weighed and the weight recorded 3 times: [0177] a. When the slide is completely clean [0178] b. After soiling [0179] c. After treatment [0...

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Abstract

A wipe that includes a water-insoluble substrate having a cleaning composition applied thereto is disclosed. The cleaning composition includes a surfactant and a bleach. In certain embodiments, the bleach can be a peroxy carboxylic acid or a hydrophilic precursor thereof.

Description

CROSS REFERENCE TO RELATED APPLICATIONS [0001] This application claims the benefit of U.S. Provisional Application No. 60 / 426,185, filed Nov. 14, 2002, and U.S. Provisional Application No. 60 / 491,719, filed Aug. 1, 2003, which are incorporated by reference herein.FIELD OF THE INVENTION[0002] The invention relates to wipes formed from water-insoluble substrates having applied thereto cleaning compositions containing bleach. The wipes are particularly suitable for use in hand dishwashing processes and accordingly the invention provides methods of dishcare using wipes of this type. BACKGROUND OF THE INVENTION [0003] It is well known to remove soils and stains from dishware and other household surfaces by application of a cleaning composition containing surfactant and other cleaning ingredients. Certain types of soil are particularly difficult to remove. For instance, dried-on or baked-on combinations of proteinaceous and greasy soils are difficult to remove from dishware. Further, stai...

Claims

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Application Information

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IPC IPC(8): A47L13/17A47L17/08C11D3/22C11D3/37C11D3/39C11D11/00C11D17/04
CPCA47L13/17A47L17/08C11D3/222C11D17/049C11D3/3945C11D11/0023C11D3/37C11D2111/14
InventorFORD, FRANCIS CORNELIOFOLEY, PETER ROBERT
OwnerTHE PROCTER & GAMBLE COMPANY